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Topic: Task about pH.  (Read 3018 times)

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Offline Farid

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Task about pH.
« on: April 05, 2007, 08:34:28 AM »
Mixed the same volumes of strong acid which pH= 0,22, and strong Base which pH= 13,3. Calculate pH level.

I need some advice how to do it.
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Offline AWK

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Re: Task about pH.
« Reply #1 on: April 05, 2007, 09:33:53 AM »
Show your attempt
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Offline Farid

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Re: Task about pH.
« Reply #2 on: April 05, 2007, 10:16:07 AM »
At the beginning, i calculated [OH-] and [H+].

First acid...
pH= 0,22
[H+] =0,603 mol/l
Next base;
pH=13,3
[OH-] = 0,2 mol /l
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For example we have 1l base and 1l acid. Our solution is  2 l. How many H+ is there?  0,6 - 0,2= 0,4 /2

So, pH= 0,7??
I'm not sure.
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Offline AWK

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Re: Task about pH.
« Reply #3 on: April 05, 2007, 10:21:22 AM »
Seems to be OK
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